Structure Analysis of the l/η(1440)

BES Collaboration

Chinese Physics C> 1996, Vol. 20> Issue(11) : 961-971

Structure Analysis of the l/η(1440)

BES Collaboration

Insitute of High Energy Physics, The Chinese Acadamy of Scinces, Beijing100039

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Abstract：
By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K⁺K^－π^O and the K⁰_SK^±π⁺ final states, we find that there is one 0^－+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1⁺⁺ resonances (M=1435±3MeV,Γ=59±5MeV and M=1497±2MeV,Γ=44±7MeV), Which are consistent with the η(1440), the f₁(1420), and the f₁(1510).

References

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D.SCHALRRE,et al、Phys.Lett.97B（1980）329.[2] Z.Bai et al.,Phys.Rev.Lett,65（1990）2507.[3] J.E.Augustin et al,Phys.Rev,D46（1992）1951.[4] D.FReeves et al.,Phys.Rev.,D34（1986）1960.[5] A.Birman et al,Phys.Rev.Lett,61（1988）1557.[6] A.Ando et al,Phys.Rev.Lett.57（1986）1296[7] T.Tsuru,in Proceeding of the Workshop on Hadron Physics,at e+e- Collider,1994.Beijing,P.34[8] H.Aihara et al., Phys Rev.Lett,57（1986）2500.[9] H.Aihara et al.Phys.Rev,D38（1988）1.[10] D.ABauer et al., Phys Rev,D48（1993）3976.[11] J.Z.Bai,et al., Nucl.Instr.and Meth.In Phys Rev., A344（1994）319.[12] Aimin Ma,Yucan Zhu,Zhipeng Zheng,in Proceeding of the Wordshop on HadronPhysicsat e+e- Collider,1994;Beijing,P.82[13] 张霖，郁宏，沈齐兴，高能物理与核物理，19（1995）800.[14] F.James,M.Roos,CERN Prognam Library,D506,1989[15] Qixing Shen,Hong Yu,Jilong Zhang,Phys.Rev.D48（1993）2129.[16] J.J.Becker,et al,Phys.Rev.Lett,59（1987）186.

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BES Collaboration. Structure Analysis of the l/η(1440)[J]. Chinese Physics C, 1996, 20(11): 961-971.

BES Collaboration. Structure Analysis of the l/η(1440)[J]. Chinese Physics C, 1996, 20(11): 961-971. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Structure Analysis of the l/η(1440)

BES Collaboration

Insitute of High Energy Physics, The Chinese Acadamy of Scinces, Beijing100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-11-05

Abstract: By an amplitudes analysis of the KKπ system in the J/ψ radiative decay to the K⁺K^－π^O and the K⁰_SK^±π⁺ final states, we find that there is one 0^－+ resonance (M=1467±3MeV,Γ=89±6MeV) and two 1⁺⁺ resonances (M=1435±3MeV,Γ=59±5MeV and M=1497±2MeV,Γ=44±7MeV), Which are consistent with the η(1440), the f₁(1420), and the f₁(1510).